diff --git a/spec_tests/hed-specification b/spec_tests/hed-specification
index d3bac05b..abc9923b 160000
--- a/spec_tests/hed-specification
+++ b/spec_tests/hed-specification
@@ -1 +1 @@
-Subproject commit d3bac05b6119988c3d8460687247413169e32c1a
+Subproject commit abc9923b0e0a7e869b73a90c60a7f3f4d8ffe2a1